silica sol with ammonium has its advantage without Na+ be used as catalyst and skidproof agent with bigger specific surfac Packaging & Delivery
| Packaging Detail: | Colloidal silica is packed in 25kg or 250kg plastic drums |
| Delivery Detail: | delivery between 7days receive T/T or L/C payment |
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There are nine kinds of colloidal silica in our company; 33 varieties altogether, which are shown below:
Kinds | Varieties | ||||
Na-stabilizer | JN-10 | JN -15 | JN -20 | JN -25 | JN -30 |
NH3-stabilizer | NS-10 | NS-15 | NS-20 | NS-25 | NS-30 |
Acidic | SW-20 | SW-25 | SW-30 |
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Neutral | ZS-20 | ZS-25 | ZS-30 |
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There are 3 types of Acidic colloidal silicaincluding SW-20, SW-25 and S-30.Their standards are:
Designation | Standard | ||||
SW-20 | SW-25 | SW-30 | |||
Appearance | Slight milky transparent to translucent liquid | ||||
SiO2 (wt%) | 20±1% | 25±1% | 30±1% | ||
Na2O (wt%) | ≤0.1% | ||||
PH (20°C) | ≤4.0 | ||||
Density (20°C,g/cm3) | 1.12-1.14 | 1.15-1.17 | 1.19-1.21 | ||
Viscosity(20°C,mPaS) | ≤7 | ||||
Particle size(nm) | 8-20 | ||||
Stability | 3 months | ||||
Packing & Storage
Colloidal silica is packed in 25kg,250kg or 1000kg plastic drums.
Store the colloidal silica at a temperature between 0 and 50, avoid exposure to the air, and insulate it from the sun.
Wash the empty drums as quickly as possible to avoid SiO2 crystalline deposits.
If you want to remove the deposition from empty drums, use a 10-percent NaOH solution at 50~60.
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